A heavy metal act with a penchant for horror and classic metal aesthetics, Nostalgica released three records in 2021 — the self-titled Nostalgica, Melissa, and Horrorplane — establishing a sound that draws as much from B-movie atmosphere as it does from traditional heavy metal riffing. Tracks like "Battles to Win" and "Horrorplane" reflect the band's B-grade horror fixations filtered through straightforward, hook-driven metal.

Nottus plays traditional heavy metal with all lyrics written in Portuguese, grounding the band firmly in a local identity unusual for the genre. Vocalist and main composer Cristiano Mendes steers the songwriting toward historical and religious subjects — the 2014 EP A Marcha Negra includes the track A Lança de Longino, which draws on the legend of the spear said to have pierced Christ at the crucifixion.

Nox Eterna have been refining their brand of classic heavy metal since the mid-1990s, with a sound that balances crunching riffs against melodic, hard-rock-tinged choruses built for the stage. Their catalog spans multiple decades and includes the albums Mind Abduction (2009) and The Ocean Is Mine (2014), and in 2007 the band was selected among the top fifty acts from a national pool of 300 to represent Brazil at Wacken Open Air.

Nunca Mas is an Argentine heavy metal band formed in 2000, whose music draws on left-wing political themes, social history, and collective memory — a stance reflected in their name, meaning "Never Again" in Spanish. The band earned early recognition in the local scene with a contribution to the 2002 Hermética tribute compilation released by Dejesú Records.